Method of splicing yarn



Nov. 24, 1936. R. H. CHASE 2,061,549

METHOD OF SPLICING YARN Original Filed June 12, 1931 Patented Nov. 24, 1936 UNITED STATES rATEf'r oFFIcE METHOD OF SPLICING YARN Raymond H. Chase, Providence, R. 1., assignor to William Wallace Potter, Pawtucket, R. I. 7

2 Claims.

In the textile art, in the processes of manufacture, it is necessary to join or secure together thread ends to make the threads continuous. The practice is to knot or tie them, and the resulting knots are objectionable for various reasons. First, they are objectionable in the manufacturing operations in that they obstruct, or hinder the smooth even passage of the knotted threads through the small thread guides and eye holes of the machines. Second, the presence of knots in the Woven or finished fabric or goods is objectionable, especially in the finer grades. The principal object of my invention is to avoid the pres ence of knots in the spliced threads and this object is achieved by a form of splice that requires no knots and avoids enlargement of the thread diameter or thickness at the splice. Another, and important object is to enable the splicing to be done by mechanical means of compact and small bulk so that the operator can hold it with one hand and can manipulate it so held,

and which when not being used, will not impede the use of that hand in other work about the machine.

My invention consists in whatever is described by or is included within the language or meaning of the appended claims.

In the drawing:

Fig. 1 is a perspective view of a splicer which can be used in the practice of the invention;

Figs. 2 and 3 are respectively, front and side views, parts being shown in section in Fig. 3;

Figs. 4 and 5 are, respectively, detail top and edge views of the base plate and thread cutter;

Fig. 6 is a view in perspective of the spliced product, shown enlarged.

Briefly described, the splice is formed by placing alongside one another substantial lengths of the ends of the two threads to be joined, and twisting them, an adhesive being applied to them, so that when twisted, they are retained in the twisted condition by the adhesive. The union is thus due to both the interlacing by twisting and the adhesive and is thus very strong. The twisting operation, of course, reduces the thickness at the overlap or the double portion and thus there is no substantial increase in gauge or diameter of the thread at the splice. Threads thus spliced are cabled with others to form the finished yarn, and for this reason are of soft twist. This makes for or enables the production of a frayed end when the strand is cut and that means that no ends are visible in the splice.

Describing in detail what is shown in the drawing, Figs. 1 to 6, IE! is a frame of substantially L-shape to arch over the operators hand, to one leg of which is secured a flexible buckle strap l I, to receive the palm portion of the hand and leave thumb and fingers free.

Mounted upon the top of frame I0, is a base plate l2, preferably covered with a friction material such as rubber or cork. Base plate I2, is provided with two diametrically opposite holes l3, each with a bevelled edge to form a thread cutter on the lower side, as shown in Figs. 4 and 5. Pivoted to the lower side of the base is an oscillating plate it, having two arms l5, with cutting edges, which respectively, pass across the holes It. The cutter carrier plate M is provided with an operating arm I 6.

The rear portion of frame I0, is provided with a vertical guide it, in which slides the vertical leg of an L-shaped arm l8, which has its end forked to journal a knob IS, in such manner that the latter may be freely rotated.

Knob I9 is hollow to provide a chamber for a liquid adhesive. At the bottom is a disk 2!], of elastic, friction material with vertical ducts 2|. Pressing against the upper face of disk is a disk of sponge material 22, which serves to con trol the flow of adhesive from the hollow portion of the knob to the ducts 2|. When the disk 20, is pressed down upon the flat top of the base plate l2, a small amount of adhesive is forced through ducts 2!, by the compressing of sponge 22.

Any suitable means may be provided for introducing adhesive into the knob but a satisfactory method is to provide an inlet hole, 23, covered by a removable rubber band 24, which encircles knob I9, and is retained by a deep groove 25. The hole 23 connects groove 25, with the interior of the knob. The band 24, effectively seals hole 23, and is easily removed and replaced.

Mounted upon the sides of frame H], are thread guides 26 and 21 and so arranged that they are respectively in line with holes l3 in base plate 12.

Knob support I8 is provided with a cam slot 28, for engaging cutter operating arm It. It will be seen that when knob I9 is pushed downward, cutter I4 is caused to slide across holes l3, in base plate l2, in a cutting operation, and for a purpose to be described.

Describing the method or procedure and referring to Fig. 1, a thread 29, is drawn over guide 26 and under guide 21 into hole l3, and left hanging as shown. The other thread 30 is then drawn over guide 21 and under guide 26,'into the other hole [3, and likewise left hanging. Knob I9 is then pushed straight down upon base plate I 2, thus gripping the pair of threads between splicing disk 20, and base plate 12 and coincidentally cutting the free ends of the threads by the action of cutters l4. As soon as splicing disk 20 makes contact with base plate l2, the knob is twisted about one-third of a revolution and a twisted splice results, adhesive being applied in the manner heretofore described, as the operation proceeds.

It will be realized that a rolling motion is imparted to the pair of threads in opposite directions with respect to a central point which comes under the center of the splicing disk, and. the product shown in Fig. 6 results.

This application is a division of my application No. 544,015 filed June 12, 1931.

What I claim is:

1. A method of splicing textile threads which includes the acts of laying two thread ends alongside one another, severing the extremities thereof, supplying an adhesive to at least one thread overlap, and twisting the overlaps.

2. A method of splicing textile threads which includes the acts of laying two thread ends alongside one another, severing the extremities thereof, supplying an adhesive to at least one thread overlap, and twisting the overlaps, the twisting being carried to a degree that reduces the gauge of the twisted portions to one not substantially greater than the remainder of the threads.

RAYMOND H. CHASE. 

